To redirect the standard output from a command use the >
(greater than) symbol followed by the name of the output
file. If the file that you redirect standard output to
does not already exist it will be created. For example:

grep Smith /etc/passwd > popular

This redirects the standard output from the grep command
so that it goes to the file popular. This file will
contain all occurrences of the string Smith that were
found in the /etc/passwd file.